h1 {
    color: black;
    font-size: 70px;
}

p {
    color: seagreen;
}

.red {
    color: aqua;
}

img {
    width: 200px;
}

body {
    font-family: "微软雅黑";
}

ol a {
    font-size: 14px;
    color: gray
}

ol span {
    font-size: 12px;
    color: black;
}

table,
th,
td {
    border: 1px solid rgb(19, 5, 8);
    border-collapse: collapse;
}

table th {
    background-color: pink;
}

table td {
    width: 300px;
    text-align: center;
}

body {
    background-color: pink;
    background-image: url(背景图.png);
    background-size: 100%;
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-position: center;
}